Nag dream meaning is explained below using 8 different sources. Each interpretation is shown with its source.

Interpretation 1 — DreamForth

To dream of an old horse or a ‘nag’ indicates a winding down of an idea or project and suggests humility and acceptance at this time.

A nag trying to keep up with other horses in a dream implies an inability to let go of a project but cautions you to release any expectations for your own happiness.

To dream of a person nagging you suggests that you may be trying to ignore that little voice inside that is trying to steer you in the appropriate direction. There is a reminder to stop and listen as you have the answer and you deserve to be heard.

To dream of nagging another person may indicate a personal frustration with an unconscious hint to relax and step away from a current bothersome situation.

Source: Dream Symbols and Analysis • Author: DreamForth

Interpretation 2 — Versatile - Anonymous

Material aspects: From a mundane viewpoint, if we are nagging someone else in dreams we may actually be trying to justify our own actions. There may be a play on words here in that a nag is also an old horse, often one that does not deviate from a particular routine.
Source: Dream Meanings of Versatile • Author: Versatile - Anonymous

Interpretation 3 — Versatile - Anonymous

Gives gender-specific: In old-fashioned parlance a nag was a scold or cantankerous old woman.

If in waking life we are used to negative reinforcement, nagging may have this relevance in both men’s and women’s dreams.

Source: Dream Meanings of Versatile • Author: Versatile - Anonymous

Interpretation 4 — Versatile - Anonymous

Psychological / emotional perspective: In dreams, if we are being nagged or scolded we will have recognized that we are not heeding our own inner truth.
Source: Dream Meanings of Versatile • Author: Versatile - Anonymous

Interpretation 5 — Joan Seaman - Tom Philbin

1. Good news and events in the offing.

2. Some confidants are not trustworthy.

3. Feelings of repressed anger and resentment, usually regarding a relationship.

Source: New American Dream Dictionary • Author: Joan Seaman - Tom Philbin

Interpretation 6 — Versatile - Anonymous

To nag almost always has a negative connotation, but when a spiritual idea or feeling keeps coming back and nagging at us we would be very wise to pay attention.
Source: Dream Meanings of Versatile • Author: Versatile - Anonymous

Interpretation 7 — Gillian Holloway

To dream that you ride on a white, gray, or dappled nag, signifies prosperity.
Source: The Complete Dream Book • Author: Gillian Holloway

Interpretation 8 — Ibn Seerin

(See Workhorse)
Source: Islamic Dream Interpretation • Author: Ibn Seerin